Arrangement for guiding push rods for the control of healds in weaving looms and in particular multiple-shuttle weaving looms



Y. LATIEULE ARRANGEMENT FOR GUIDING PUSH RODS FOR THE CONTROL OF HEALDSIN WEAVING LOOMS AND IN PARTICULAR MULTIPLE-SHUTTLE WEAVING LOOMS FiledApril 25, 1952 se pzs, 1954 k\\\\\'\ of A INVEN OR 41 V z/ VVET5 LIQ'TIETLJLE I I if. aj

Patented Sept. 28, 1954 ARRANGEMENT 2,690,194 FOR GUIDING PUSH RODS FORTHE CONTROL OF HEALDS IN WEAV- ING LOOMS AND IN PARTICULAR MULTI-PLE-SHUTTLE WEAVING LOOMS Yves Latieule, Paris, France, assignor ofone-half to Societe dite: Comptoir Linier, Paris, France,

a corporation of France Application April 25, 1952, Serial No. 284,243

Claims priority, application France November 8, 1951 Claims.

This invention relates to an arrangement for guiding push rods for thecontrol of healds in weaving looms and in particular multiple-shuttleweaving looms.

In a normal weaving loom, the various operations for the depositing ofthe weft threads, the movement of the shed and the compacting of theweft thread take place successively over the entire width of the fabric.To increase productivity, some looms efiect these operationssimultaneously. These include, for example, circular multi-shuttle loomsin which each of these operations reaches a predetermined point of itscycle at each instant. In such apparatus, whether circular or fiat, itis mostly necessary to control the healds by means of a number of pushrods. These push rods slide with either a parallel or a radial motion inbearings under the effect of an internal mechanism, such as a cam. Toensure that the opening movements of the shed are sufficientlyprogressive and to facilitate construction, it is desirable on the onehand to increase the number of such push rods and on the other hand toform them with a circular section. It is then necessary to prevent thepush rods from turning about their own axes when in their bearmgs.

The object of the present invention is to obviate the abovedisadvantage.

According to the present invention, an arrangement for guiding push rodsfor the control of healds in weaving looms, more particularly multipleshuttle weaving looms, is characterised in that it comprises a forkfixed on each push rod and bearing against an adjacent push rod so as toprevent the first from turning.

For a better understanding of the invention, and to show how it'may becarried into eifect, the same will now be described with reference tothe accompanying drawings, in which:

Figure 1 is a plan view of one constructional form;

Figure 2 is a sectional elevation of the arrangement shown in Figure 1;

Figure 3 is a plan view of another constructional form;

Figure 4 is a sectional elevation of the arrangement shown in Figure 3,and

tion.

Referring to Figures 1 and 2, it will be seen that the push rod A fastwith the fork B is guided by the sliding of the said fork on the pushrod C, whereby it is prevented from turning. Similarly, the push rod Cfast with the fork D is guided by the sliding of the said fork on thepush rod A.

In Figures 3, 4 and 5, there is shown a method of guiding in which thepush rods hear one against the other by stepped formation.

The fork may be secured to the push rods either by keys (Figures 2 and5), which may then serve as abutments to limit the movement of the pushrods, or by means of threaded heads and nuts inside a bore formed in thestems of the push rods so that the push rods can be freely lowered withrespect to one another.

It will be apparent that the position of the forks must permit thelongitudinal motion necessary in the operation of the push rods.

I claim:

1. In a weaving loom having a plurality of push rods arranged inadjacent spaced-apart relationship for controlling the healds of saidloom, means for guiding said push rods, said means comprising a forkedmember having a shank portion secured to each push rod and having prongsextending across and bearing against opposite sides of an adjacent pushrod, whereby the push rod to which the forked member is attached isprevented from turning.

2. In a weaving loom having a plurality of push rods arranged inadjacent spaced-apart relationship for controlling the healds of saidloom, means for guiding said push rods, said means comprising a forkedmember having a shank portion secured to each push rod and having prongsextending across and bearing against opposite sides of an adjacent pushrod, the forked member on each push rod being axially spacedapart fromthe forked member on the adjacent push rods and the forked members onall of said push rods being in stepped formation relatively to oneanother in passing across the push rods, whereby the push rod to whicheach forked member is attached is prevented from turning.

3. In a weaving loom having a plurality of push rods arranged inadjacent spaced-apart relationship for controlling the healds of saidloom, means for guiding said push rods, said means comprising a forkedmember having a shank portion secured to each push rod and having prongsextending across and bearing against opposite sides of an adjacent pushrod, said forked members being arranged in pairs with the prongs of theforked member of one push rod bearing against the adjacent push rod andthe prongs of the forked member on said adjacent push rod bearingagainst said first-named push rod, whereby the push rod to which eachforked member is attached is prevented from turning.

4. A weaving loom as defined in claim 1, wherein each push rod passesthrough a bore formed 4 in its associated forked member and is securedtherein by removable securing means.

5. A weaving loom as defined in claim 1, wherein each push rod is formedwith a transverse bore and the shank portion of each forked member isreceived in said bore and is secured therein.

References Cited in the file of this patent UNITED STATES PATENTS

